Visual Ruby

Create Great GUIs using Ruby and Glade

Visualruby was designed specifically for rubyists who want to add a GUI to
their ruby scripts. It enormously simplifies the process of adding GTK+
windows to your applications. Visualruby is completely integrated with the
glade interface designer, so you only need to click on a ruby file to edit
its widgets using glade.

The editor has a “Run=F5” button to execute your script, and if an error
occurs, the editor will automatically jump to the spot in your code that
caused the error. Also, you can create a .gemspec file, compile your gem,
install your gem, or push, yank or uninstall your gem with just one
mouse-click.